Koh Phak Bia, or known locally as Koh Lao Bu Lo, is situated within the jurisdiction of Than Bok Khorani National Park. It is a vital part of the Hong Islands archipelago, which is internationally recognized for its pristine marine resources and ecological significance. Despite being a small, uninhabited islet, its unique geological features make it a primary destination for travelers exploring the Andaman Sea. The island's geography consists of two limestone outcrops positioned closely together, linked by a stretch of fine white sand that becomes fully visible during low tide. This creates a "mini-sandbar" phenomenon, allowing visitors to walk between the two landmasses amidst the receding tides.

The physical characteristics of Koh Phak Bia are particularly striking due to the clarity and calmness of the surrounding emerald waters, which are naturally sheltered by the larger neighboring islands. The shoreline is dotted with weathered limestone formations shaped by centuries of wind and wave erosion. The most prominent feature is a large, mushroom-shaped rock that has become an iconic landmark for photography. While the sand texture here is slightly coarser compared to the powdery shores of the main Hong Island—consisting largely of crushed shells and coral fragments—it offers a rugged, untouched natural charm that reflects the raw biological diversity of the region.

From an ecological perspective, Koh Phak Bia serves as a sanctuary for various seabirds and a resident population of crab-eating macaques that are frequently spotted foraging along the beach. The waters surrounding the island harbor shallow-water coral reefs that remain in relatively healthy condition, providing opportunities for snorkelers to observe sergeant major fish and other tropical marine life just a short distance from the shore. Because the island lacks permanent structures or commercial vendors, it retains a high level of tranquility and privacy. This makes Koh Phak Bia an ideal retreat for those seeking a genuine connection with nature, away from the more crowded tourist hubs of Krabi.

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How to Get There

• Visitors can join a "Hong Islands One Day Trip" from Ao Nang or Krabi Town. Alternatively, you can charter a private long-tail boat from Ao Nang Beach, Noppharat Thara Pier, or Klong Sai Pier. The boat ride typically takes 45 to 60 minutes.

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Travel Tips

• Check the tide tables carefully to ensure the sandbar is visible during your visit.

• Wear water shoes to protect your feet from sharp coral fragments and rocks on the beach.

• Use a waterproof bag for cameras and phones as you may need to wade through water.

• Bring your own drinking water and snacks as there are no shops or vendors on the island.

• Always wear a life jacket while swimming or snorkeling to comply with park safety rules.

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Admission Fees:

• Thai Nationals: Adult 60 THB / Child 30 THB

• Foreign Nationals: Adult 300 THB / Child 150 THB

• (Note: This fee excludes boat transportation costs. Please keep your ticket to show park rangers at other island stops on the same day.)

Opening Hours:

• Operating Hours: 08:30 AM – 04:30 PM (Open daily)

• Seasonal Closure: Some areas may be closed for ecological recovery during the monsoon season (typically from May to October) as per the annual announcements from the Department of National Parks.